TW201904554A - A cosmetic composition and the preparing method thereof - Google Patents

Abstract

The present invention relates to a cosmetic composition comprising: an inorganic powder; one or more stabilizers selected from the group consisting of metal dispersants, anionic surfactants, and pH adjusters; and functional active ingredients. According to the cosmetic composition of the present invention, dispersion stability and uniform distribution on the skin can be maintained, and adsorption of the functional active ingredient to the inorganic powder can be prevented.

Description

Cosmetic composition and its preparation method

The present invention relates to a cosmetic composition. More specifically, it relates to a cosmetic composition that allows an effective ingredient to stably exhibit excellent stability and an excellent makeup effect.

If the fine particles with a size of less than micrometers in the inorganic powder such as titanium dioxide or zinc oxide are included in the cosmetic composition, it can provide protection from ultraviolet light (Ultraviolet (UV) -A, UV-B ) Damage, and non-irritating UV blockers compared to organic UV blockers, has the advantages of not only improving the dispersion stability of the composition, but also evenly distributed when applied to the skin, so it is used in cosmetics Composition. On the other hand, in addition to titanium dioxide or zinc oxide, there are zinc oxide, titanium dioxide, iron oxide, magnesium oxide and the like as the substance having the physical property of reflecting and dispersing ultraviolet rays.

In addition, if the surface of the fine particles is reorganized, various surface treatment technologies are being developed in order to further ensure dispersion stability and uniform distribution on the skin.

However, the above inorganic powder has a wide specific surface area (m ² / g) and surface charge due to micronization, especially when the surface reorganization is insufficient, such as adenosine and nicotine Functional active ingredients such as amine, phenoxyethanol, and ethylhexyl methoxycinnamate are adsorbed to the inorganic powder, and as a result, there is a problem that the content of the functional active ingredients included in the cosmetic composition decreases.

Therefore, the fact is that there is a need to develop a cosmetic composition that can maintain the dispersion stability and uniform distribution on the skin as described above, and prevent functional effective ingredients from being adsorbed to the inorganic powder.

[Prior Art Literature] [Patent Literature] Korean Patent Publication No. 10-2000-0026082, "Composite Pigments for Cosmetics and Preparation Method"

[Problems to be solved by invention]

In order to solve the above problems, the applicant has confirmed the following situation: if a metal dispersant, an anionic surfactant, a pH adjuster, etc. are used together with an inorganic powder in a cosmetic composition, the adsorption of functional active ingredients can be prevented To inorganic powder, and maintain dispersion stability and uniform distribution on the skin.

Therefore, an object of the present invention is to provide a cosmetic composition that can maintain dispersion stability and uniform distribution on the skin, and prevent functional effective ingredients from being adsorbed to the inorganic powder.

[Means to solve the problem]

In order to solve the above problems, the present invention provides a cosmetic composition comprising: inorganic powder; one or more stabilizers selected from the group consisting of metal dispersants, anionic surfactants, and pH adjusters; and functions Sexually active ingredients.

In this case, the metal dispersant may be selected from the group consisting of gluconate (Gluconate) metal salts, stearate (Stearate) metal salts, aspartate (Aspartate) metal salts, and cetyl phosphate (Cetyl) Phosphate) more than one of the group consisting of metal salts.

At this time, the metal dispersant may be selected from copper gluconate (Cu), calcium gluconate (Ca), zinc gluconate (Zn), calcium stearate (Ca), magnesium stearate (Mg), stearin More than one of the group consisting of zinc acid (Zn), aluminum stearate (Al), magnesium aspartate (Mg), and potassium cetyl phosphate (K).

In this case, the anionic surfactant may be selected from the group consisting of glyceryl stearate citrate, sodium surfactin, and polyoxyethylene glycerylisostearate. , PEG-20 triglyceryl triisostearte, polyethhylene glycol monoisostearate, PEG-100 stearate, PEG-40 stearate (Stearate), sorbitan stearate, glyceryl laurate, glyceryl laurate, Glyceryl Stearate and Hexahydroxystearate More than one.

At this time, the above-mentioned pH adjusting agent may be selected from the group consisting of L-glutamic acid, lactic acid, citric acid, CITRIC ACID, SALICYLIC ACID, and myristic acid (MYRISTIC ACID), oleic acid (oleic acid), and lauric acid (LAURIC ACID).

In this case, the inorganic powder may be selected from titanium dioxide (TiO ₂ ), zinc oxide (ZnO), iron oxide (Fe ₂ O ₃ , FeO, Fe ₃ O ₄ ), magnesium oxide (MgO), and manganese oxide (MnO ₂ ) One or more of the group consisting of cerium oxide (CeO).

In this case, the functional active ingredient may be one or more selected from the group consisting of adenosine, nicotinamide, phenoxyethanol, and ethylhexyl methoxycinnamate.

At this time, the above inorganic powder and stabilizer can be included in a ratio of 100: 1 to 10: 1.

In this case, the inorganic powder can be included in an amount of 1% by weight to 10% by weight based on the entire composition.

In this case, the above-mentioned stabilizer can be included at 0.05 to 1.0% by weight based on the entire composition.

At this time, a part of the above stabilizer may be bonded to the OH group on the surface of the inorganic powder, or by a condensation reaction.

In this case, the cosmetic composition described above can be used for a cosmetic composition for skin care or a cosmetic composition for color cosmetics.

[Effect of invention]

According to the present invention, a metal dispersant, an anionic surfactant, a pH adjusting agent, etc. are used together with an inorganic powder in a cosmetic composition, thereby preventing functional effective ingredients from being adsorbed to the inorganic powder and maintaining dispersion stability Sexually and evenly distributed on the skin.

Therefore, it is possible to prepare a cosmetic composition that can stably include functional effective ingredients in the composition.

As described above, as a product having both dispersion stability and uniform distribution on the skin, it may be a product such as a cosmetic composition for skin care or a cosmetic composition for color cosmetics, which can increase the preference for the above-mentioned products.

The present invention provides a cosmetic composition that can maintain dispersion stability and uniform distribution on the skin, and prevent functional effective ingredients from being adsorbed to inorganic powder. The above cosmetic composition includes: inorganic powder; selected from metal dispersants, One or more stabilizers in the group consisting of anionic surfactants and pH adjusting agents; and functional active ingredients.

In the case of using inorganic powder fine particles such as titanium dioxide or zinc oxide in order to improve the dispersion stability in the cosmetic composition, there is a wide specific area (surface area, m ² / g) and surface charge (charge), such as adenosine, nicotinamide, phenoxyethanol, methoxycinnamic acid ethylhexyl and other functional active ingredients adsorbed to the inorganic powder, as a result of which cosmetic composition The problem of reduced content of functionally active ingredients included in.

The present invention relates to a technique for realizing the following cosmetic composition: using stabilizers such as metal dispersants, anionic surfactants and pH adjusters together with inorganic powders, thereby maintaining dispersion stability and It is evenly distributed on the skin and prevents functional active ingredients from adsorbing to the inorganic powder. With the above technical features, it is possible to stably maintain the effect produced by the content of the functional active ingredients included in the cosmetic composition.

The above-mentioned inorganic powder included in the cosmetic composition of the present invention is not particularly limited as long as it is an inorganic powder having a size (particle size) of less than micrometers (μm), but preferably selected from titanium dioxide ( TiO ₂ ), zinc oxide (ZnO), iron oxides (Fe ₂ O ₃ , FeO, Fe ₃ O ₄ ), magnesium oxide (MgO), manganese oxide (MnO ₂ ) and cerium oxide (CeO) More than one of them.

The inorganic powder can be included in the range of 0.1 to 25% by weight based on the entire composition, preferably 0.5 to 15% by weight, more preferably 1 to 10% by weight. If the above-mentioned inorganic powder is contained in an amount of less than 0.1% by weight, the ultraviolet blocking effect is very small, and when 25% by weight or more is used, there is a disadvantage that it is not suitable for cosmetic use. Not suitable for cosmetic use means that when the above-mentioned substance is applied to the skin, it is not refreshed due to the sticky feeling of use, which causes discomfort. White turbidity occurs on the skin and the skin appears white and oily. On the poor. In addition, too many physical blockers dispersed in the nano size can penetrate into the skin, which is more likely to cause safety problems. The photoactivity caused by free radicals can cause skin irritation and skin damage. The particle size increases due to the secondary agglomeration of the particles, and thus has a functional drawback that the ultraviolet blocking ability decreases with time, and is limited to 25% by weight or less according to the formulation limit of the Korean Cosmetics Act.

As the stabilizer included in the cosmetic composition of the present invention, one or more kinds selected from the group consisting of metal dispersants, anionic surfactants, and pH adjusters can be used. The above stabilizer can be included in the range of 0.05% by weight to 20.0% by weight based on the entire composition, preferably 0.1% by weight to 5% by weight. If the above stabilizer is contained in an amount of less than 0.05% by weight, the functional active ingredient cannot be prevented from being adsorbed to the inorganic powder, so there is a problem with the stability of the functional effective ingredient. If it exceeds 20% by weight, there is a dosage form stability and Problems such as skin irritation are not good.

As the metal dispersant, a metal salt selected from the group consisting of gluconate (Steconate) metal salts, stearate (Stearate) metal salts, aspartate metal salts, and cetyl phosphate salts (Cetyl Phosphate) can be used. ) One or more of the group consisting of metalloid salts, etc., more specifically, selected from copper gluconate (Cu), calcium gluconate (Ca), zinc gluconate (Zn), calcium stearate (Ca ), Magnesium stearate (Mg), zinc stearate (Zn), aluminum stearate (Al), magnesium aspartate (Mg), and potassium cetyl phosphate (K), etc. More than one.

As the anionic surfactant described above, glyceryl stearate citrate, sodium surfactin, polyoxyethylene glycerylisostearate, PEG-20 triglyceryl triisostearte, polyethhylene glycol monoisostearate, PEG-100 stearate, PEG-40 stearate ( Stearate), sorbitan stearate, glyceryl laurate, glyceryl laurate, Glyceryl Stearate, and Hexahydroxystearate the above.

As the above-mentioned pH adjusting agent, one selected from the group consisting of L-glutamic acid (L-glutamic acid), lactic acid (Lactic Acid), citric acid (CITRIC ACID), salicylic acid (SALICYLIC ACID), myristic acid (MYRISTIC ACID) ), Oleic acid (oleic acid) and lauric acid (LAURIC ACID) and so on.

All or a part of the stabilizer is bonded to the OH group on the surface of the inorganic powder, or is bonded by a condensation reaction or an ionic bond (metal dispersant), thereby preventing the adsorption of functional active ingredients to the inorganic powder. By this, the content of the functional active ingredient substantially present in the cosmetic composition can be increased. Therefore, the functional effective component adsorbed to the inorganic powder over time can be minimized, and even if the cosmetic composition is used for a long time, the functional effective component can be stably included.

For this, the above inorganic powder and stabilizer can be included in a ratio of 100: 1 to 10: 1 (inorganic powder: stabilizer). If the content ratio of the inorganic powder to the stabilizer exceeds 100: 1, the stabilizer cannot sufficiently react with the inorganic powder, so that there is a problem that the adsorption of functional active ingredients cannot be prevented. The pH adjuster makes the pH value too low, and the anionic surfactant or metal dispersant has problems such as skin irritation, which is not good.

One or more kinds selected from the group consisting of adenosine, nicotinamide, phenoxyethanol, and ethylhexyl methoxycinnamate can be used as the functional active ingredient included in the cosmetic composition of the present invention.

The above functional active ingredients can be used according to various compositions and contents according to the needs of users. Preferably, the content of adenosine as a raw material for anti-wrinkle functional notification of functional cosmetics based on the entire composition is 0.04% as a function The content of nicotine amide in the whitening functional notification raw materials of sexual cosmetics is 2.00%, and the content of arbutin as the whitening functional notification raw material of functional cosmetics is 2.00%, which is the ultraviolet blocking functional notification of functional cosmetics The content of ethylhexyl methoxycinnamate in raw materials is 7.50% ((US) Food and Drug Administration (FDA) concentration limit), and phenoxyethanol can be used up to 1% in Korean law .

In addition to the above-mentioned composition, the cosmetic composition of the present invention may further include components used in ordinary cosmetic compositions. The above-mentioned additional components are not particularly limited, but may further include chinensis extract, oil-soluble licorice extract, retinyl palmitate, polyethoxylated retinamide, ascorbic acid glucoside, magnesium ascorbyl phosphate Wait.

The cosmetic composition of the present invention can be used for cosmetic products that can maintain dispersion stability and uniform distribution on the skin. The cosmetic composition includes a cosmetic composition for skin care or a cosmetic composition for make-up, specifically, it can be formulated into a makeup Milk, pre-makeup cream, foundation, powder, dual-purpose powder, lipstick, lip gloss, eye shadow, eyebrow powder, concealer, lip liner, blusher, UV blocker, lotion, cream or essence, more specific Generally speaking, the dosage form is transformed into makeup pre-makeup, makeup base cream, liquid foundation or solid foundation, powder, dual-purpose powder, lipstick, lip gloss, eye shadow, eyebrow powder, concealer cream or blush, but it is not limited thereto.

In addition, the present invention provides a preparation method, which is a preparation method of a cosmetic composition, including: a) a step of performing a reaction in an aqueous phase or an oil phase after mixing a stabilizer into an inorganic powder; and b) a function The step of mixing the sexually active ingredients into the above reactants.

In the preparation method of the cosmetic composition described above, the contents regarding the inorganic powder, the stabilizer, and the functional active ingredient are the same as those described in the cosmetic composition of the present invention described above.

Hereinafter, the preparation method of the cosmetic composition of the present invention will be described in more detail with examples of the present invention. The invention is of course not limited to these embodiments. Of Example

The cosmetic composition is prepared by mixing the oil phase ingredients, water phase ingredients, inorganic powder, stabilizer and functional active ingredients of Table 1 below. [Table 1]

As the above-mentioned stabilizers and functional active ingredients, stabilizers and functional active ingredients as shown in Tables 2 to 3 below are used. The specific preparation method is as follows. Of Example 1 of Example 16 and Comparative Example 1

The stabilizer and functional active ingredients as shown in Table 2 below are used.

1) After mixing 5% by weight of the oil phase component and fine particle titanium oxide of Table 1 above and 0.4% by weight of the stabilizer of Table 2 below, they were mixed and dispersed at 65 ° C for 5 minutes. 2) Thereafter, each 0.04% by weight of the water phase components in Table 1 above and the functional effective components in Table 2 below are mixed. 3) After slowly adding the above 2) to the above 1) and mixing, completely degassing to prepare a water-in-oil type makeup cosmetic composition. The compositions of Examples 1 to 16 were prepared using a water-in-oil cosmetic composition. In addition, the composition of Comparative Example 1 was prepared by the same method except that no stabilizer was used. [Table 2] In Example 1 of Example 7 to 30 and Comparative Example 2

The stabilizer and functional active ingredients as shown in Table 3 below are used.

1) After mixing 5% by weight of the oil phase component and fine particle titanium oxide of Table 1 above and 0.4% by weight of the stabilizer of Table 3 below, they were mixed and dispersed at 90 ° C for 15 minutes. 2) Thereafter, each 0.04% by weight of the water phase components of Table 1 and the functional effective components of Table 3 below are mixed. 3) After slowly adding the above 2) to the above 1) and mixing, completely degassing to prepare a water-in-oil type makeup cosmetic composition. The compositions of Examples 17 to 29 were prepared using a water-in-oil cosmetic composition. In addition, the composition of Comparative Example 2 was prepared by the same method except that no stabilizer was used. [table 3] Experimental example

For the cosmetic compositions of the above comparative examples and examples, high performance liquid chromatography (HLPC) analysis was performed on the composition immediately after preparation and the composition after 24 weeks and described in Table 4 below To Table 5, the conditions are as follows. -Column: CAPCELL PAK C18 (SHISEIDO)-Detector (measurement wavelength): Ultraviolet spectrophotometric detector (203 nm)-Injection volume, flow rate: 20 μL, 1.0 mL / min-Mobile phase: Gradient conditions of HPLC (Gradient) conditions for HPLC) (A: Deionized (DI) water, B: 50% BeCN) [Table 4] [table 5]

As can be seen from Tables 4 to 5 above, the cosmetic compositions of Examples 1 to 29 including stabilizers have functionalities such as adenosine, nicotinamide, phenoxyethanol, etc. even after a period of 24 weeks The content of active ingredients did not decrease significantly. Conversely, it can be seen that the cosmetic compositions of Comparative Examples 1 to 2 that do not include a stabilizer significantly reduce the content of functional active ingredients as time passes by 24 weeks.

Therefore, it can be seen that if the cosmetic composition of the present invention is used, the functional effective ingredient will not be adsorbed to the inorganic powder even after a long period of time, and the functional effective ingredient can be stably included.

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Claims (12)

A cosmetic composition, including: an inorganic powder; a stabilizer, one or more selected from the group consisting of metal dispersants, anionic surfactants, and pH adjusters; and functionally active ingredients. The cosmetic composition as described in item 1 of the patent application scope, wherein the metal dispersant is selected from the group consisting of gluconate metal salts, stearate metal salts, and aspartate salts (Aspartate) metal salt and Cetyl Phosphate metal salt. The cosmetic composition according to item 1 of the patent application scope, wherein the metal dispersant is selected from copper gluconate (Cu), calcium gluconate (Ca), zinc gluconate (Zn), and calcium stearate (Ca ), Magnesium stearate (Mg), zinc stearate (Zn), aluminum stearate (Al), magnesium aspartate (Mg) and potassium cetyl phosphate (K) More than one. The cosmetic composition according to item 1 of the patent application scope, wherein the anionic surfactant is selected from the group consisting of glyceryl stearate citrate, sodium surfactin, poly Polyoxyethylene glycerylisostearate, PEG-20 triglyceryl triisostearte, polyethhylene glycol monoisostearate, PEG-100 stearic acid Esters (stearate), PEG-40 stearate (Stearate), sorbitan stearate (Sorbitan stearate), glyceryl laurate (glyceryl laurate), glyceryl stearate (Glyceryl Stearate) and hexahydroxy hard Fatty acid ester (Hexahydroxystearate) in more than one group. The cosmetic composition according to item 1 of the patent application scope, wherein the pH adjusting agent is selected from the group consisting of L-glutamic acid (L-glutamic acid), lactic acid (Lactic Acid), citric acid (CITRIC ACID), water Salicylic acid (SALICYLIC ACID), myristic acid (MYRISTIC ACID), oleic acid (oleic acid), and lauric acid (LAURIC ACID). The cosmetic composition according to item 1 of the patent application scope, wherein the inorganic powder is selected from titanium dioxide (TiO ₂ ), zinc oxide (ZnO), iron oxide (Fe ₂ O ₃ , FeO, Fe ₃ O ₄ ), Magnesium oxide (MgO), manganese oxide (MnO ₂ ), and cerium oxide (CeO). The cosmetic composition according to item 1 of the patent application scope, wherein the functional active ingredient is selected from the group consisting of adenosine, nicotinamide, phenoxyethanol, and ethylhexyl methoxycinnamate More than one of them. The cosmetic composition as described in item 1 of the patent application scope, wherein the inorganic powder and the stabilizer are included in a ratio of 100: 1 to 10: 1. The cosmetic composition according to item 1 of the scope of the patent application, wherein the inorganic powder is included in an amount of 1% to 10% by weight based on the entire composition of the cosmetic composition. The cosmetic composition according to item 1 of the patent application scope, wherein the stabilizer is included in an amount of 0.05% to 1.0% by weight based on the entire composition of the cosmetic composition. The cosmetic composition according to item 1 of the patent application scope, wherein a part of the stabilizer is bonded to the OH group on the surface of the inorganic powder, or is bonded by an ionic bond or a condensation reaction. The cosmetic composition as described in item 1 of the scope of the patent application, wherein the cosmetic composition is used for a skin care cosmetic composition or a color cosmetic composition.